diff --git a/test/integration/export_test.py b/test/integration/export_test.py
index cc9f9a0..11bc812 100644
--- a/test/integration/export_test.py
+++ b/test/integration/export_test.py
@@ -1,3 +1,4 @@
+import io
 import csv
 import pytest
 import pyexasol
@@ -51,7 +52,7 @@ def table(connection, empty_table, data):
     name = empty_table
     stmt = "INSERT INTO {table} VALUES ({{col1}}, {{col2}});"
     for col1, col2 in data:
-        connection.execute(stmt.format(table=name), {"col1": col1, "col2":col2})
+        connection.execute(stmt.format(table=name), {"col1": col1, "col2": col2})
     connection.commit()
     yield name
 
@@ -61,34 +62,60 @@ def export_file(tmp_path, data):
     yield tmp_path / "names.csv"
 
 
-@pytest.mark.etl
-def test_export_with_column_names():
-    assert False
+@pytest.fixture
+def csv_dialect():
+    class PyexasolCsvDialect(csv.Dialect):
+        lineterminator = "\n"
+        delimiter = ","
+        quoting = csv.QUOTE_MINIMAL
+        quotechar = '"'
+
+    yield PyexasolCsvDialect()
+
+
+@pytest.fixture
+def expected_csv(csv_dialect):
+    def create_csv(table, data, **params):
+        csvfile = io.StringIO()
+        if "with_column_names" in params and params["with_column_names"]:
+            data = [("FIRSTNAME", "LASTNAME")] + data
+        writer = csv.writer(csvfile, csv_dialect)
+        writer.writerows(data)
+        return csvfile.getvalue()
+
+    yield create_csv
 
 
 @pytest.mark.etl
-def test_skip_rows_in_export():
-    assert False
+def test_export_with_column_names(connection, table, data, export_file, expected_csv):
+    params = {"with_column_names": True}
+    connection.export_to_file(export_file, table, export_params=params)
+
+    expected = expected_csv(table, data, **params)
+    actual = export_file.read_text()
+
+    assert actual == expected
 
 
 @pytest.mark.etl
-def test_custom_export_callback(connection, table, data, export_file):
+def test_custom_export_callback(connection, table, data, export_file, expected_csv):
     def export_cb(pipe, dst):
         dst.write_bytes(pipe.read())
 
     connection.export_to_callback(export_cb, export_file, table)
 
-    expected = 0 # TBD
-    actual = None # TBD
+    expected = expected_csv(table, data)
+    actual = export_file.read_text()
 
     assert actual == expected
 
 
 @pytest.mark.etl
-def test_export_with_reodered_columns():
-    assert False
+def test_export_csv_cols(connection, table, data, export_file, expected_csv):
+    params = {"csv_cols": ["1..2", "2 foo_LASTNAME"]}
+    connection.export_to_file(export_file, table, export_params=params)
 
+    expected = expected_csv(table, data, **params)
+    actual = export_file.read_text()
 
-@pytest.mark.etl
-def test_export_with_custom_csv_format():
-    assert False
+    assert actual == expected